Continuously failing the college entrance exam while all his friends went to the college, Jaehong has driven to succeed in the exam to experience the ultimate university life. But he won’t be able to do it by himself, he needs a good tutor! And Han Eunsung is the one he needs. However, it turned out that Eunsung is not the tutor that his mother invited, he just accidentally went to Jaehong’s house because of mistaken Jaehong and his apartment. But the fact is that Eunsung is Jaehong’s best tutor until now. Therefore, Jaehong tried all the ways to persuade Eunsung to teach him. Eunsung, on the other hand, appears uninterested… Can Jaehong persuade him? What will happen between them?